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Concentration of metabolizable energy and digestibility of energy, phosphorus, and amino acids in lemna protein concentrate fed to growing pigs.
J Anim Sci. 2014 Nov; 92(11):5222-9.JA

Abstract

Lemna protein concentrate (LPC; 68.0% CP) is produced by extracting protein from de-oiled and dehydrated biomaterials from plants of the Lemnaceae family and may be used as a protein source for animals. There are, however, no published data on the nutritional value of LPC fed to pigs. Three experiments were, therefore, conducted to determine the concentration of ME, the standardized total tract digestibility (STTD) of P, and the standardized ileal digestibility (SID) of AA in LPC and to compare these values to values for fish meal and soybean meal (SBM). Experiment 1 was conducted to determine the ME of LPC, fish meal, SBM, and corn. Thirty-two barrows (initial BW: 16.8 ± 2.8 kg) were placed in metabolism cages and allotted to a randomized complete block design with 4 diets and 8 replicate pigs per diet. A corn-based diet and 3 diets that contained corn and LPC, fish meal, or SBM were formulated. Feces and urine were collected for 5 d after a 5-d adaptation period, and all samples were analyzed for GE. Results indicated that the concentration of ME was not different among corn, fish meal, and SBM (3,855, 3,904, and 4,184 kcal/kg DM, respectively), but there was a tendency (P = 0.08) for a reduced ME in LPC (3,804 kcal/kg DM) compared with SBM. In Exp. 2, 24 barrows (initial BW: 12.5 ± 2.5 kg) were allotted to a randomized complete block design with 3 diets and 8 replicate pigs per diet and used to determine the STTD of P in LPC, fish meal, and SBM. Three diets that each contained 1 of the 3 test ingredients as the sole source of P were formulated. Pigs were placed in metabolism cages, and feces were collected for 5 d after a 5-d adaptation period. The STTD of P in LPC (72.8%) was not different from the STTD of P in fish meal (65.6%), but tended (P = 0.07) to be greater than in SBM (62.8%). The SID of AA in LPC, SBM, and fish meal was determined in Exp. 3. Eight barrows (initial BW: 21.4 ± 4.0 kg) were equipped with a T-cannula in the distal ileum and randomly allotted to a replicated 4 × 4 Latin square design. A N-free diet and 3 cornstarch-based diets in which SBM, SBM and LPC or SBM and fish meal were the only sources of AA were formulated. The SID of most indispensable AA was greater (P < 0.05) in fish meal than in LPC, but the overall SID of AA was not different between fish meal and LPC. In conclusion, the ME and the STTD of P are not different between LPC and fish meal, but there is a tendency for greater ME in SBM than in LPC, whereas the STTD of P tends to be greater in LPC than in SBM. The SID of the most indispensable AA is greater in fish meal than in LPC.

Authors+Show Affiliations

Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana 61801.Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana 61801.Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana 61801 hstein@illinois.edu.

Pub Type(s)

Comparative Study
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25349364

Citation

Rojas, O J., et al. "Concentration of Metabolizable Energy and Digestibility of Energy, Phosphorus, and Amino Acids in Lemna Protein Concentrate Fed to Growing Pigs." Journal of Animal Science, vol. 92, no. 11, 2014, pp. 5222-9.
Rojas OJ, Liu Y, Stein HH. Concentration of metabolizable energy and digestibility of energy, phosphorus, and amino acids in lemna protein concentrate fed to growing pigs. J Anim Sci. 2014;92(11):5222-9.
Rojas, O. J., Liu, Y., & Stein, H. H. (2014). Concentration of metabolizable energy and digestibility of energy, phosphorus, and amino acids in lemna protein concentrate fed to growing pigs. Journal of Animal Science, 92(11), 5222-9. https://doi.org/10.2527/jas.2014-8146
Rojas OJ, Liu Y, Stein HH. Concentration of Metabolizable Energy and Digestibility of Energy, Phosphorus, and Amino Acids in Lemna Protein Concentrate Fed to Growing Pigs. J Anim Sci. 2014;92(11):5222-9. PubMed PMID: 25349364.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Concentration of metabolizable energy and digestibility of energy, phosphorus, and amino acids in lemna protein concentrate fed to growing pigs. AU - Rojas,O J, AU - Liu,Y, AU - Stein,H H, PY - 2014/10/29/entrez PY - 2014/10/29/pubmed PY - 2015/11/4/medline KW - amino acids KW - digestibility KW - lemna protein concentrate KW - metabolizable energy KW - phosphorus KW - pigs SP - 5222 EP - 9 JF - Journal of animal science JO - J Anim Sci VL - 92 IS - 11 N2 - Lemna protein concentrate (LPC; 68.0% CP) is produced by extracting protein from de-oiled and dehydrated biomaterials from plants of the Lemnaceae family and may be used as a protein source for animals. There are, however, no published data on the nutritional value of LPC fed to pigs. Three experiments were, therefore, conducted to determine the concentration of ME, the standardized total tract digestibility (STTD) of P, and the standardized ileal digestibility (SID) of AA in LPC and to compare these values to values for fish meal and soybean meal (SBM). Experiment 1 was conducted to determine the ME of LPC, fish meal, SBM, and corn. Thirty-two barrows (initial BW: 16.8 ± 2.8 kg) were placed in metabolism cages and allotted to a randomized complete block design with 4 diets and 8 replicate pigs per diet. A corn-based diet and 3 diets that contained corn and LPC, fish meal, or SBM were formulated. Feces and urine were collected for 5 d after a 5-d adaptation period, and all samples were analyzed for GE. Results indicated that the concentration of ME was not different among corn, fish meal, and SBM (3,855, 3,904, and 4,184 kcal/kg DM, respectively), but there was a tendency (P = 0.08) for a reduced ME in LPC (3,804 kcal/kg DM) compared with SBM. In Exp. 2, 24 barrows (initial BW: 12.5 ± 2.5 kg) were allotted to a randomized complete block design with 3 diets and 8 replicate pigs per diet and used to determine the STTD of P in LPC, fish meal, and SBM. Three diets that each contained 1 of the 3 test ingredients as the sole source of P were formulated. Pigs were placed in metabolism cages, and feces were collected for 5 d after a 5-d adaptation period. The STTD of P in LPC (72.8%) was not different from the STTD of P in fish meal (65.6%), but tended (P = 0.07) to be greater than in SBM (62.8%). The SID of AA in LPC, SBM, and fish meal was determined in Exp. 3. Eight barrows (initial BW: 21.4 ± 4.0 kg) were equipped with a T-cannula in the distal ileum and randomly allotted to a replicated 4 × 4 Latin square design. A N-free diet and 3 cornstarch-based diets in which SBM, SBM and LPC or SBM and fish meal were the only sources of AA were formulated. The SID of most indispensable AA was greater (P < 0.05) in fish meal than in LPC, but the overall SID of AA was not different between fish meal and LPC. In conclusion, the ME and the STTD of P are not different between LPC and fish meal, but there is a tendency for greater ME in SBM than in LPC, whereas the STTD of P tends to be greater in LPC than in SBM. The SID of the most indispensable AA is greater in fish meal than in LPC. SN - 1525-3163 UR - https://www.unboundmedicine.com/medline/citation/25349364/Concentration_of_metabolizable_energy_and_digestibility_of_energy_phosphorus_and_amino_acids_in_lemna_protein_concentrate_fed_to_growing_pigs_ L2 - https://academic.oup.com/jas/article-lookup/doi/10.2527/jas.2014-8146 DB - PRIME DP - Unbound Medicine ER -